Exactly. In fact, the usual reaction of groups I played in/with when counter intel-ing the Johnson and finding out that he is a true corp exec, was changing into complete distrust mode. If someone who works as a corp exec hires the average runner, he/she needs fall-guys.
On the other hand, a true wage slave might of course become a Mr Johnson for some reason. But as he would not have corp funds to back him up, the job might be anything from "stalk my girlfriend" to "wack the competition for my new position".